Reinforcing-bar.



' No. 881,762. PATENTED' M-AR.-10, 1908.

' B.L.A 1)B,E0N,J1 z.

BEINFORGING BAR.

APPLICATION FILED JAN.15, 1907.

NVENTOR. l EDWARD L.. ADREON JR.

ATT'YS.

EDWARD L. ADREON, JR.,

OF ST. LOUIS, MISSOURI.

RErNFoRomG-BAR.

Application filed January 15, 1907.

To all whom it may concern.' n

Be it known that I, EDWARD L. ADREON, Jr., a citizen of the United States, and resident, of St. Louis, Missouri, have invented certain new and useful Improvements in Reinforcing-Bars, of which the following is a specification containing a full, clear, and eXact description, reference being had to the accompanying drawings, forming a part hereof.

My invention relates to a reinforcing bar, which is preferably adapted for concrete and analo ous plastic construction, although it may construction.

The object of my invention is to provide a reinforcing bar which, when embedded in a body of concrete or metal, Will materially resist longitudinal strain, and which will particularly resist lateral strain, thus overcoming the tendency of the body of concrete or metal to fracture longitudinally.

Heretofore, where reinforcing bars are emloyed in concrete construction, and there is ateral strain upon the beam or member in which the bar is located, said beam-or member tends to fracture lon itudinally along the edges of the reinforcing ar; but, by my improved construction, this objection is overcome, and the tendency of longitudinal fracture is reduced to a minimum.

To the above pur` oses, my invention consists in certain nove features of construction and arrangement of parts, which will be hereinafter more fully set forth, pointed out in the claims, and illustrated in the accompanying drawings, in which Figure l is a perspective view of a portion of a reinforcing bar of my improved construction before the edges are crimped, as contemplated by my invention Fig. 2 is a side elevation of the reinforcing bar after the edges thereof have been crimped Fi 3 is a plan view of a short section of one of t e bars, and showing the'crimps or bends in the opposite edges thereof staggered or offset; Fig. 4 is a view analogous to Fig. 3, and showing `the crimps or bends in the opposite edges arranged directly opposite one another; Fig. 5 is a cross section of a concrete beam or member in which is embedded one of my reinforcing bars; Fig. 6 is a side elevation of a brake shoe, partlyin section, and showing the reinforcing bar embedded therein; Fig. 7 is a cross section taken on the line 7 7 of Fig. 6.

In the construction of my improved rein- Speci'caton of Letters Patent.

e advantageously used in cast metal horizontally,

Patented March 10, 1908.

Serial No. 352,425.

forcing bar, I make use of a member 1, commercially known as a half oval, the edges of which member are crimped or bent upwardly from the flat side to form two scalloped edges 2. When the sides of the bar are thus bent, the edges A of the upwardly bent portions are necessarily drawn inwardly so that they occupy positions inside the vertical planes occupied by the unbent edges' of the bar, and thus when the member or bar 1 is seen in plan view, the edges appear scalloped, as clearly shown in Figs. 3 and 4. The bends or scallops in the edges of the member or bar l may be arranged at either regular or virregular distances apart, and the bends on one side may be staggered relative the bends on the opposite side, as shown in Fig. 3, or they may be arranged directly opposite one another, as shown in Fig. 4.

The edges of my improved reinforcing bar, being scalloped both vertically and correspondingly break the joint between the edges andthe material of a body in which the reinforcing bar is em edges of the reinforcing bar and the material v in which it is embedded.

When the edges of the reinforcing bar are bent upwardly, the eXtreme upper ends of the upwardly bent portions occupy planes higher than the points on the top surface of the bar where said bends start upwardly, and this arrangement forms shallow pockets, such as B, immediately behind the upwardly bentk ed es, and the material in which the bar is em edded filling these pockets will be very rigidly anchored therein, and will very effectually resist lateral strain, and a consequent tendency to separate or fracture along the side edges of the reinforc# ing bar.

In Fi s. 6 and 7, I have shown the reinforcing ar applied to brake shoes, and it will be readily understood that said reinforcing bar can be applied to any cast metal construction wherever an eXtra strong strain resisting member is desired.

As a new article of manufacture, a reinforcing member for concrete and metal construction, comprising a bar which gradually decreases in thickness from its longitudinal center to its side edges, said side edges being In testimony whereof, I have signed my bent inward and upward at intervals so as naine to this` speciiication, in presence of 10 to bring the edges of'the'bentportions into two subscribing witnesses.

the horizontal plane occupied by the center of the bar, and there being shallow concave EDWARD L ADREON JR' pockets formed on the top of the bar between Witnesses: thebent portion of the side edges and the NLP. SMITH,

center of said barA E. L. VALLACE. 

